Prognostic Effect of Whether Doing PLND During RC for High-risk NMIBC

NCT ID: NCT05123625

Last Updated: 2025-08-05

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 200 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2021-07-01
• Study Completion Date: 2028-06-30

Brief Summary

There is no consensus on the need for lymph node dissection in radical cystectomy (RC) for high-risk non-muscular invasive bladder cancer (NMIBC). Investigators divided participants at high risk of NMIBC without enlarged lymph nodes as indicated by pelvic MRI into two groups 1:1. One group of participants underwent RC combined with lymph node dissection and the other group of participants only underwent RC. The incidence of complications and PFS/OS at 1, 3, and 5 years were compared.

Detailed Description

Bladder cancer is highly prevalent worldwide and approximately 75% of these are non-muscle invasive bladder cancer (NMIBC). For high-risk NMIBC, postoperative intravesical chemotherapy combined with full-dose BCG for 3 years is recommended. Radical cystectomy (RC) is also one of the treatment options, and is recommended for patients with BCG-naïve, BCG-refractory, and recurrent high-grade or carcinoma-in-situ (CIS) bladder cancer after BCG perfusion.

RC combined with pelvic lymph node dissection is the standard treatment for MIBC. Currently, there is no conclusion on the radical treatment of NMIBC, most of NMIBC patients refer to MIBC and also perform pelvic lymph node dissection. However, long operation time, high incidence of lymphatic cyst, lymphatic leakage and other complications, and long recovery time, increase the psychological and economic burden. At present, many studies have showed that the positive rate of lymph nodes in NMIBC patients is low. Investigators also analyzed the data of patients who underwent RC in investigators' center from 2013 to 2019, and found that the positive rate of lymph nodes in 163 NMIBC patients was only 3.07%.

MRI can effectively predict pelvic metastatic lymph nodes, and its sensitivity and negative predictive values have been reported as high as 76.4% and 71.4%. VI-RADS score can effectively judge the muscularity of bladder tumor. Therefore, Investigators proposed whether it is necessary to perform pelvic lymph node dissection in NMIBC patients without enlarged lymph nodes indicated by pelvic MRI. Investigators intended to divide participants at high risk of NMIBC without enlarged lymph nodes as indicated by pelvic MRI into two groups 1:1. One group underwent RC combined with lymph node dissection and the other group only underwent RC. The incidence of complications and PFS/OS at 1, 3, and 5 years were compared.

Conditions

Bladder Cancer

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

RC combined with lymph node dissection

When radical cystectomy was performed, pelvic lymph node dissection was also performed.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Only RC

In the intervention group, investigators used a reductive approach. That is, for radical cystectomy, investigators did not perform pelvic lymph node dissection.

Group Type: EXPERIMENTAL

Reduce surgical procedures

Intervention Type: PROCEDURE

In the intervention group, investigators used a reductive approach. That is, for radical cystectomy, investigators did not perform pelvic lymph node dissection.

Interventions

Reduce surgical procedures

In the intervention group, investigators used a reductive approach. That is, for radical cystectomy, investigators did not perform pelvic lymph node dissection.

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

1. Patients who did not undergo diagnostic transurethral resection of bladder tumor (TURBT): biopsy suggestive of G3/high grade or with CIS or cystoscopic findings of multiple, tumor diameter greater than 3 cm; and VI-RADS score of 1 or 2; and no enlarged lymph nodes detected by MRI.

2. Patients undergoing diagnostic TURBT: pathologically confirmed high-risk NMIBC, a) stage T1; b) G3 or high-grade; c) CIS; d) multiple, recurrent TaG1G2/low-grade bladder cancer patients with >3 cm in diameter. And no enlarged lymph nodes detected on MRI.

3. Benefit from radical cystectomy as assessed by the investigator.

4. Meeting the indications for the procedure: a) absolute neutrophil count ≥ 1.5 *109/L; b) platelets ≥ 100 *109/L; c) hemoglobin ≥ 90 g/L; d) international normalized ratio or activated partial thromboplastin time ≤ 1.5 upper limit of normal (ULN); e) calculated creatinine clearance ≥ 1 ml/s f) serum total bilirubin ≤ 1.5 * ULN; g) AST, ALT and alkaline phosphatase ≤ 2.5 * ULN; h) cardiopulmonary function suggestive of tolerance to major abdominal surgery.

5. No previous history of tumor, lymph node dissection, or immune system-related disease.

6. Age 18 to 75 years.

7. No neoadjuvant therapy.

8. ECOG physical status 0 or 1.

9. Voluntary participation in this trial, ability to provide written informed consent, and understanding and agreement to comply with the requirements of this study and the evaluation schedule.

Exclusion Criteria

1. Patients with bladder cancer ≥ T2N0M0 confirmed by pathology or assessed by imaging, or with pelvic lymph node enlargement indicated by MRI;

2. The investigator assessed patients who could not tolerate radical cystectomy;

3. Previous systemic chemotherapy or immunotherapy;

4. The presence of active autoimmune diseases requiring systemic treatment or other diseases requiring long-term use of large amounts of hormones and other immunosuppressants;

5. Had undergone major surgery or major trauma within 28 days before enrollment;

6. Received live vaccine within 28 days before enrollment;

7. Severe chronic or active infections requiring systemic antibacterial, antifungal or antiviral therapy within 14 days prior to enrollment;

8. Received any Chinese herbal medicine or proprietary Chinese medicine for cancer control within 14 days before enrollment;

9. Participating in other clinical studies.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

The Second Affiliated Hospital of Kunming Medical University

OTHER

Sponsor Role: collaborator

Tianjin Medical University Second Hospital

OTHER

Sponsor Role: collaborator

RenJi Hospital

OTHER

Sponsor Role: collaborator

First Affiliated Hospital Xi'an Jiaotong University

OTHER

Sponsor Role: collaborator

The First Affiliated Hospital with Nanjing Medical University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Qiang Lu, PhD

Role: STUDY_CHAIR

The First Affiliated Hospital with Nanjing Medical University

Locations

The first affiliated hospital of Nanjing Medical University

Nanjing, Jiangsu, China

Site Status: RECRUITING

Countries

China

Central Contacts

Xiao Yang, MD

Role: CONTACT

yangxiao2915@163.com

+86 13951813528

Juntao Zhuang

Role: CONTACT

doctorlvqiang@njmu.edu.cn

+86 15651753950

Facility Contacts

Qiang Lu, PhD

Role: primary

doctorlvqiang@njmu.edu.cn

13505196501

Xiao Yang

Role: backup

yangxiao2915@163.com

13951813528

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Other Identifiers

2021-SR-291.A1

Identifier Type: -

Identifier Source: org_study_id